Name: Thymosin Alpha-1 5mg (10 Vials / Kit)
Brand: HK Peptide
SKU: HK-TA5
Price: 65.00 USD
Availability: InStock

What is Thymosin Alpha-1?

Thymosin Alpha-1 is derived from the precursor protein prothymosin alpha and carries an N-terminal acetyl group. Under the name thymalfasin, the same peptide is an approved immunomodulatory medicine in several countries, meaning a substantial body of regulated clinical data exists for this molecule alongside its preclinical research literature.

How it is understood to work

Thymosin Alpha-1 is studied for its interaction with Toll-like receptors on dendritic cells and other antigen-presenting cells, where it is reported to promote T-cell differentiation and maturation, enhance antigen presentation, and shift cytokine production toward a more balanced immune profile. These actions position it as a modulator of innate-adaptive immune crosstalk rather than a direct antimicrobial or antiviral agent.

Research status

Research on Thymosin Alpha-1 spans immunology, virology, and oncology, including studies of chronic viral infection, vaccine adjuvant potential, sepsis, and immune aging. Because thymalfasin has undergone clinical trials and regulatory review for some indications internationally, its human pharmacology is comparatively well documented, though this research material is intended solely for laboratory use, separate from any approved clinical product.

This listing: HK Peptide Thymosin Alpha-1

Brand: HK Peptide
Kit: 10 vials × 5 mg (50 mg in total)
Price per vial: $6.50
Price per mg: $1.30
Other strengths: 10mg $130.00
Also sold by: Uther Peptide 10mg $145.00

Lab testing

There is no public lab report for this listing yet. We can ask the brand for the batch COA before you order. Many buyers also split an independent HPLC test with others who bought the same batch.

Request the batch COA · How group testing works

Bought through escrow: the brand is only paid after you confirm delivery. If the parcel never arrives, or an independent test shows the wrong compound or a significant under-fill, open a claim before releasing payment.

Specifications

Compound: Thymosin Alpha-1
Also known as: T-alpha-1, Thymalfasin
Class: Thymic immunomodulatory peptide (28 amino acids)
Form: Lyophilized (freeze-dried) powder
Per vial: 5mg
Molecular formula: C₁₂₉H₂₁₅N₃₃O₅₅
Molecular weight: 3108.3 g/mol
Structure: 28 amino acids, N-acetylated
Stated purity: ≥99% (HPLC)
Appearance: White lyophilized powder

Handling & storage

Supplied as a lyophilized powder; store unopened vials at -20C protected from light, and keep reconstituted solution refrigerated, using it within the timeframe set by the study protocol.

Concentration check: adding 2 ml of bacteriostatic water to one 5 mg vial gives 2.5 mg/ml. The Research Lab calculator in your dashboard works this out for any volume.

Questions

Is Thymosin Alpha-1 the same as the approved drug thymalfasin?

Yes, thymalfasin is the pharmaceutical name for the same 28-amino-acid peptide; this listing is a research-grade version supplied strictly for laboratory use, not the approved clinical formulation.

Why are two pack sizes (5mg and 10mg) offered?

Both contain the same acetylated peptide at the same purity specification; the sizes differ only in total mass per vial for different study-scale needs.

How much Thymosin Alpha-1 is in this kit?

10 vials of 5 mg each, so 50 mg in total. The lab testing section above shows what the brand’s tested vial actually contained.

For laboratory research use only. Not for human or veterinary use. Nothing on this page is medical advice.